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Grinding Wheels

While flap discs might be the popular option in the abrasives category, grinding discs or grinding wheels are the preferred choice when heavy material removal is required. Our grinding wheels and discs are engineered for aggressive stock removal and extra-long life. Roark Supply Inc. quality-made metal grinding discs are designed for exceptional precision and consistency on all applications. Providing the ultimate finishes, our grinding wheels and cutting tools are used by industry professionals around the world. Browse our high-performance abrasive grinding wheels fit to meet the highest requirements of any job.

We offer grinding discs in various sizes including 4.5”, 5”, 6”, 7” and 9”.

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Pferd PSF 4.5" and 5" Depressed Center Grinding Wheels Pferd PSF 4.5" and 5" Depressed Center Grinding Wheels

  • High grinding performance
  • Reduced labor time
  • Economic efficiency
  • Long service life
  • Designed for steel & cast iron
  • 4.5" = 13,300 RPM
  • 5" = 12,200 RPM
  • Made in Germany

Pferd SGP 4.5" & 5" Ceramic Depressed Center Grinding Wheels Pferd SGP 4.5" & 5" Ceramic Depressed Center Grinding Wheels

  • Cool grinding and excellent productivity
  • Self-sharpening abrasive ceramic grain
  • Reduced labor time
  • Long service life
  • Designed for steel & stainless steel
  • 4.5" = 13,300 RPM
  • 5" = 12,200 RPM
  • Made in Germany

Pearl 4.5" and 5" Redline Max-A.O. Depressed Center Wheels Pearl 4.5" and 5" Redline Max-A.O. Depressed Center Wheels


  • Material: Aluminum Oxide
  • For ferrous metals; iron, steel & stainless steel
  • Type 27 – Depressed center flat wheel
  • Less vibration
  • Cooler grinding
  • Non-loading
  • Increased grinding efficiency

Pearl 6", 7" and 9" Redline™ Max-A.O.™ Depressed Center Wheels Pearl 6", 7" and 9" Redline™ Max-A.O.™ Depressed Center Wheels


  • Material: Aluminum Oxide
  • For ferrous metals; iron, steel & stainless steel
  • Type 27 – Depressed center flat wheel
  • Less vibration
  • Cooler grinding
  • Non-loading
  • Increased grinding efficiency

Pearl 4.5" D.A. Series Aluminum Depressed Center Grinding Wheels Pearl 4.5" D.A. Series Aluminum Depressed Center Grinding Wheels

  • For aluminum soft non-ferrous metals, copper, brass, bronze
  • Exclusive non-loading formula
  • Type 27 – Depressed center wheel
  • Max RPM: 13,300

3M™ Silver 4.5" and 5" Ceramic Depressed Center Wheels 3M™ Silver 4.5" and 5" Ceramic Depressed Center Wheels

  • Premium performance in a value-packed wheel
  • Optimal balance of fast cutting and long life
  • Material: Ceramic
  • For ferrous metals; iron, steel & stainless steel
  • 4.5": Max RPM = 13,300
  • 5": Max RPM = 12,250
  • Contaminant free

SAIT 4.5" & 5" Depressed Center Grinding Wheels - Made in USA SAIT 4.5" & 5" Depressed Center Grinding Wheels - Made in USA

  • Superior quality and design
  • Soft bond for fast stock removal
  • Designed for steel & stainless steel
  • T27
  • 4.5" = 13,300 RPM
  • 5" = 12,200 RPM
  • Made in USA

3M Cubitron 3: 4.5" & 5" Depressed Center Grinding Wheels 3M Cubitron 3: 4.5" & 5" Depressed Center Grinding Wheels

  • Material: Ceramic Grain
  • Precision-shaped grain engineered to cut faster than competitive ceramic products
  • Triangular shaped ceramic grain wears evenly, runs cook and optimized mineral breakdown
  • Enhanced Speed - Delivers up to 15% increase cut rate compared to 3M Cubitron ll
  • Reduces time and pressure to get the job done
  • Fewer Changeovers - Removes up to 1.5x more material compared to 3M Cubitron ll
  • Specifically formulated for use on stainless steel, mild steel, and aerospace alloys
  • Increased wheel life and productivity
  • 4.5" / 13,300 Max RPM
  • 5" / 12,250 Max RPM

2" Grinding Discs 2" Grinding Discs

  • For metal and steel
  • Widely used by welders and fabricators
  • High quality, double reinforced with pressed metal centers.

Bench Grinder Stones & Wheels Bench Grinder Stones & Wheels

  • Available in 6", 8" and 10" diameters
  • 6" stone available in 3/4" or 1" thickness
  • Comes in 24 Grit, 36 Grit, 46 Grit, 60 Grit, and 80 Grit.
  • High quality aluminum oxide and gray in color
  • 6" grinding stone: 4456 max rpm
  • 8" grinding stone: 3600 max rpm